Vegetated filter strips shall comply with the following:
- (a) The vegetative cover type of the filter strip shall be forest, meadow, or a combination of forest and meadow;
- (b) The overland flow length to the filter strip shall not exceed 75 feet for impervious surfaces and 150 feet for pervious surfaces;
- (c) Longitudinal slopes shall be no less than 0.5% and no greater than 15%; and
- (d) The vegetated filter strip shall be at least 25 feet long and as wide as the area draining to the strip.
Source. #9343, eff 1-1-09; ss by #12342 (formerly Env-Wq 1508.11); ss by #13758, eff 9-28-23 (formerly Env-Wq 1508.12); ss by #14472, eff 1-19-26, EXPIRES: 1-19-36